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* Revert r112623. It is causing self host build failures.Devang Patel2010-08-315-112/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112631 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the Ada instructions to LLVM 2.7 (from LLVM 2.5).Duncan Sands2010-08-311-7/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112630 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an RAII helper to make cleanup of the RecursionSet more fool-proof.Owen Anderson2010-08-311-18/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112628 91177308-0d34-0410-b5e6-96231b3b80d8
* Only try to clean up the current block if we changed that block already.Owen Anderson2010-08-311-5/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112625 91177308-0d34-0410-b5e6-96231b3b80d8
* SP relative offsets need to be adjusted by the local allocation size whenJim Grosbach2010-08-311-0/+4
| | | | | | | determining if they're likely to be in range of the SP when resolving frame references. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112624 91177308-0d34-0410-b5e6-96231b3b80d8
* Remember byval argument's frame index during argument lowering and use this ↵Devang Patel2010-08-315-4/+112
| | | | | | | | | info to emit debug info. Fixes Radar 8367011. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112623 91177308-0d34-0410-b5e6-96231b3b80d8
* this assert should just be a condition, since this function is just asking ifJim Grosbach2010-08-311-2/+5
| | | | | | the offset is legally encodable, not actually trying to do the encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112622 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a test for the duplicated-conditional situation illutrated by PR5652.Owen Anderson2010-08-311-0/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112621 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor my fix for PR5652 to terminate the predecessor lookups after the ↵Owen Anderson2010-08-311-25/+24
| | | | | | first failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112620 91177308-0d34-0410-b5e6-96231b3b80d8
* merge two tests.Chris Lattner2010-08-312-35/+35
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112617 91177308-0d34-0410-b5e6-96231b3b80d8
* Manually reduce this testcase.Owen Anderson2010-08-311-77/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112615 91177308-0d34-0410-b5e6-96231b3b80d8
* merge two tests and convert to filecheck.Chris Lattner2010-08-312-23/+28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112613 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a micro-test for the transforms I added to JumpThreading.Owen Anderson2010-08-311-0/+30
| | | | | | | | | | | | | I have not been able to find a way to test each in isolation, for a few reasons: 1) The ability to look-through non-i1 BinaryOperator's requires the ability to look through non-constant ICmps in order for it to ever trigger. 2) The ability to do LVI-powered PHI value determination only matters in cases that ProcessBranchOnPHI can't handle. Since it already handles all the cases without other instructions in the def-use chain between the PHI and the branch, it requires the ability to look through ICmps and/or BinaryOperators as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112611 91177308-0d34-0410-b5e6-96231b3b80d8
* Update test for 112609Jim Grosbach2010-08-311-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112610 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve virtual frame base register allocation heuristics.Jim Grosbach2010-08-311-73/+109
| | | | | | | | | | | | | | | | | | 1. Allocate them in the entry block of the function to enable function-wide re-use. The instructions to create them should be re-materializable, so there shouldn't be additional cost compared to creating them local to the basic blocks where they are used. 2. Collect all of the frame index references for the function and sort them by the local offset referenced. Iterate over the sorted list to allocate the virtual base registers. This enables creation of base registers optimized for positive-offset access of frame references. (Note: This may be appropriate to later be a target hook to do the sorting in a target appropriate manner. For now it's done here for simplicity.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112609 91177308-0d34-0410-b5e6-96231b3b80d8
* Speculatively revert r112433.Dan Gohman2010-08-311-24/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112608 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow creation of SHT_NULL sections, from Roman Divacky.Benjamin Kramer2010-08-311-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112605 91177308-0d34-0410-b5e6-96231b3b80d8
* Stop using the dom frontier in DwarfEHPrepare by not promoting alloca'sDuncan Sands2010-08-313-88/+11
| | | | | | | | | any more. I plan to reimplement alloca promotion using SSAUpdater later. It looks like Bill's URoR logic really always needs domtree, so the pass now always asks for domtree info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112597 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an infinite loop; merging two functions will create a new function (if theNick Lewycky2010-08-311-31/+45
| | | | | | | | | | two are weak, we make them thunks to a new strong function) so don't iterate through the function list as we're modifying it. Also add back the outermost loop which got removed during the cleanups. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112595 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't perform an extra traversal of the function just to do cleanup. We can ↵Owen Anderson2010-08-311-5/+4
| | | | | | safely simplify instructions after each block has been processed without worrying about iterator invalidation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112594 91177308-0d34-0410-b5e6-96231b3b80d8
* - Cleanup some whitespaces.Bill Wendling2010-08-311-102/+101
| | | | | | | | - Convert {0,1} and friends into 0b01, which is identical and more consistent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112593 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename test directory to reflect new pass name.Owen Anderson2010-08-312-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112592 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename ValuePropagation to a more descriptive CorrelatedValuePropagation.Owen Anderson2010-08-314-15/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112591 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename file to something more descriptive.Owen Anderson2010-08-312-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112590 91177308-0d34-0410-b5e6-96231b3b80d8
* More Chris-inspired JumpThreading fixes: use ConstantExpr to correctly ↵Owen Anderson2010-08-312-26/+155
| | | | | | | | | | constant-fold undef, and be more careful with its return value. This actually exposed an infinite recursion bug in ComputeValueKnownInPredecessors which theoretically already existed (in JumpThreading's handling of and/or of i1's), but never manifested before. This patch adds a tracking set to prevent this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112589 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanup Whitespace.Michael J. Spencer2010-08-312-24/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112587 91177308-0d34-0410-b5e6-96231b3b80d8
* System: Fix getMagicNumber on windows.Michael J. Spencer2010-08-311-3/+2
| | | | | | | | | | getMagicNumber was treating the _binary_ data it read in as a null terminated string. This resulted in the std::string calculating the length, and causing an assert in other code that assumed that the length it passed was the same as the length of the string it would get back. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112586 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix spelling/typo.Michael J. Spencer2010-08-311-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112585 91177308-0d34-0410-b5e6-96231b3b80d8
* Offset is not always unsigned number.Devang Patel2010-08-312-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112584 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify.Devang Patel2010-08-312-15/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112583 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch to DenseSet, simplifying much more code. We now have a single iterationNick Lewycky2010-08-311-78/+83
| | | | | | | | where we hash, compare and fold, instead of one iteration where we build up the hash buckets and a second one to fold. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112582 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove r111665, which implemented store-narrowing in InstCombine. Chris ↵Owen Anderson2010-08-312-68/+0
| | | | | | | | | discovered a miscompilation in it, and it's not easily fixable at the optimizer level. I'll investigate reimplementing it in DAGCombine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112575 91177308-0d34-0410-b5e6-96231b3b80d8
* zap unused method. x86 is the only user and already has a more powerfull versionBruno Cardoso Lopes2010-08-312-33/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112571 91177308-0d34-0410-b5e6-96231b3b80d8
* Use X86ISD::MOVSS and MOVSD to represent the movl mask pattern, also fix the ↵Bruno Cardoso Lopes2010-08-311-7/+14
| | | | | | handling of those nodes when seeking for scalars inside vector shuffles git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112570 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite slightly so we can expand for floating point types easier.Eric Christopher2010-08-311-17/+25
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* Add experimental -disable-physical-join command line option.Jakob Stoklund Olesen2010-08-311-0/+10
| | | | | | | | | | Eventually, we want to disable physreg coalescing completely, and let the register allocator do its job using hints. This option makes it possible to measure the impact of disabling physreg coalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112567 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo.Owen Anderson2010-08-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112560 91177308-0d34-0410-b5e6-96231b3b80d8
* If we have an unhandled type then assert, we shouldn't get here forEric Christopher2010-08-301-1/+3
| | | | | | | things we can't handle. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112559 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the descriptions of NoModRef and ModRef to be consistentDan Gohman2010-08-302-9/+7
| | | | | | | with the descriptions of Mod and Ref. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112557 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix borken testAnton Korobeynikov2010-08-301-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112555 91177308-0d34-0410-b5e6-96231b3b80d8
* Combine these two tests, and make sure there's a newline at the end of the file.Owen Anderson2010-08-302-21/+19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112554 91177308-0d34-0410-b5e6-96231b3b80d8
* Cleanups suggested by Chris.Owen Anderson2010-08-301-20/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112553 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-apply r112539, being more careful to respect the return values of the ↵Owen Anderson2010-08-301-22/+25
| | | | | | | | | constant folding methods. Additionally, use the ConstantExpr::get*() methods to simplify some constant folding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112550 91177308-0d34-0410-b5e6-96231b3b80d8
* Expand MOVi32imm in ARM mode after regalloc. This providesAnton Korobeynikov2010-08-301-2/+7
| | | | | | | scheduling opportunities (extra instruction can go in between MOVT / MOVW pair removing the stall). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112546 91177308-0d34-0410-b5e6-96231b3b80d8
* Add statistics to evaluate this pass.Owen Anderson2010-08-301-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112545 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r112539. It accidentally introduced a miscompilation.Owen Anderson2010-08-301-20/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112543 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixes and cleanups pointed out by Chris. In general, be careful to handle 0 ↵Owen Anderson2010-08-301-16/+20
| | | | | | | | | results from ComputeValueKnownInPredecessors (indicating undef), and re-use existing constant folding APIs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112539 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the existing T2I_bin_s_irs pattern instead of creating T2I_bin_sw_irs, whichBill Wendling2010-08-302-69/+2
| | | | | | | | is meant to do exactly the same thing. Thanks to Jim Grosbach for pointing this out! :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112538 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a comment.NAKAMURA Takumi2010-08-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112535 91177308-0d34-0410-b5e6-96231b3b80d8
* Remember to clear the shadow kill flag at the same time as clearing the realJakob Stoklund Olesen2010-08-301-0/+1
| | | | | | | | | | | kill flag. This could cause duplicate kill flags when the same register was used twice in a continuous sequence of STRs. There is no small test case. <rdar://problem/8218046> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112534 91177308-0d34-0410-b5e6-96231b3b80d8
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